| | |
| | | * Process command |
| | | * @param context |
| | | */ |
| | | static void processCommand(scpi_t * context) { |
| | | static scpi_bool_t processCommand(scpi_t * context) { |
| | | const scpi_command_t * cmd = context->param_list.cmd; |
| | | lex_state_t * state = &context->param_list.lex_state; |
| | | scpi_bool_t result = TRUE; |
| | | |
| | | /* conditionaly write ; */ |
| | | writeSemicolon(context); |
| | |
| | | |
| | | /* if callback exists - call command callback */ |
| | | if (cmd->callback != NULL) { |
| | | if ((cmd->callback(context) != SCPI_RES_OK) && !context->cmd_error) { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_EXECUTION_ERROR); |
| | | if ((cmd->callback(context) != SCPI_RES_OK)) { |
| | | if (!context->cmd_error) { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_EXECUTION_ERROR); |
| | | } |
| | | result = FALSE; |
| | | } else { |
| | | if (context->cmd_error) { |
| | | result = FALSE; |
| | | } |
| | | } |
| | | } |
| | | |
| | | /* set error if command callback did not read all parameters */ |
| | | if (state->pos < (state->buffer + state->len) && !context->cmd_error) { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_PARAMETER_NOT_ALLOWED); |
| | | result = FALSE; |
| | | } |
| | | |
| | | return result; |
| | | } |
| | | |
| | | /** |
| | |
| | | * @param context |
| | | * @param data - complete command line |
| | | * @param len - command line length |
| | | * @return 1 if the last evaluated command was found |
| | | * @return FALSE if there was some error during evaluation of commands |
| | | */ |
| | | int SCPI_Parse(scpi_t * context, char * data, int len) { |
| | | int result = 0; |
| | | scpi_bool_t SCPI_Parse(scpi_t * context, char * data, int len) { |
| | | scpi_bool_t result = TRUE; |
| | | scpi_parser_state_t * state; |
| | | int r; |
| | | scpi_token_t cmd_prev = {SCPI_TOKEN_UNKNOWN, NULL, 0}; |
| | | |
| | | if (context == NULL) { |
| | | return -1; |
| | | return FALSE; |
| | | } |
| | | |
| | | state = &context->parser_state; |
| | | context->output_count = 0; |
| | | |
| | | while (1) { |
| | | result = 0; |
| | | |
| | | r = scpiParser_detectProgramMessageUnit(state, data, len); |
| | | |
| | | if (state->programHeader.type == SCPI_TOKEN_INVALID) { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_INVALID_CHARACTER); |
| | | result = FALSE; |
| | | } else if (state->programHeader.len > 0) { |
| | | |
| | | composeCompoundCommand(&cmd_prev, &state->programHeader); |
| | |
| | | context->param_list.cmd_raw.position = 0; |
| | | context->param_list.cmd_raw.length = state->programHeader.len; |
| | | |
| | | processCommand(context); |
| | | |
| | | result = 1; |
| | | result &= processCommand(context); |
| | | cmd_prev = state->programHeader; |
| | | } else { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_UNDEFINED_HEADER); |
| | | result = FALSE; |
| | | } |
| | | } |
| | | |
| | |
| | | * @param len - length of data |
| | | * @return |
| | | */ |
| | | int SCPI_Input(scpi_t * context, const char * data, int len) { |
| | | int result = 0; |
| | | scpi_bool_t SCPI_Input(scpi_t * context, const char * data, int len) { |
| | | scpi_bool_t result = TRUE; |
| | | size_t totcmdlen = 0; |
| | | int cmdlen = 0; |
| | | |
| | |
| | | |
| | | buffer_free = context->buffer.length - context->buffer.position; |
| | | if (len > (buffer_free - 1)) { |
| | | return -1; |
| | | /* Input buffer overrun - invalidate buffer */ |
| | | context->buffer.position = 0; |
| | | context->buffer.data[context->buffer.position] = 0; |
| | | SCPI_ErrorPush(context, SCPI_ERROR_INPUT_BUFFER_OVERRUN); |
| | | return FALSE; |
| | | } |
| | | memcpy(&context->buffer.data[context->buffer.position], data, len); |
| | | context->buffer.position += len; |
| | |
| | | * @return |
| | | */ |
| | | static size_t resultUInt32BaseSign(scpi_t * context, uint32_t val, int8_t base, scpi_bool_t sign) { |
| | | char buffer[32+1]; |
| | | char buffer[32 + 1]; |
| | | const char * basePrefix; |
| | | size_t result = 0; |
| | | size_t len; |
| | |
| | | * @return |
| | | */ |
| | | static size_t resultUInt64BaseSign(scpi_t * context, uint64_t val, int8_t base, scpi_bool_t sign) { |
| | | char buffer[64+1]; |
| | | char buffer[64 + 1]; |
| | | const char * basePrefix; |
| | | size_t result = 0; |
| | | size_t len; |
| | |
| | | SCPI_UInt32ToStrBase((uint32_t) len, block_header + 2, 10, 10); |
| | | |
| | | header_len = strlen(block_header + 2); |
| | | block_header[1] = (char)(header_len + '0'); |
| | | block_header[1] = (char) (header_len + '0'); |
| | | |
| | | result += writeData(context, block_header, header_len + 2); |
| | | result += writeData(context, data, len); |
| | |
| | | case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA: |
| | | case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA_WITH_SUFFIX: |
| | | if (sign) { |
| | | return strBaseToInt32(parameter->ptr, (int32_t *)value, 10) > 0 ? TRUE : FALSE; |
| | | return strBaseToInt32(parameter->ptr, (int32_t *) value, 10) > 0 ? TRUE : FALSE; |
| | | } else { |
| | | return strBaseToUInt32(parameter->ptr, value, 10) > 0 ? TRUE : FALSE; |
| | | } |
| | |
| | | case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA: |
| | | case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA_WITH_SUFFIX: |
| | | if (sign) { |
| | | return strBaseToInt64(parameter->ptr, (int64_t *)value, 10) > 0 ? TRUE : FALSE; |
| | | return strBaseToInt64(parameter->ptr, (int64_t *) value, 10) > 0 ? TRUE : FALSE; |
| | | } else { |
| | | return strBaseToUInt64(parameter->ptr, value, 10) > 0 ? TRUE : FALSE; |
| | | } |
| | |
| | | * @return TRUE if succesful |
| | | */ |
| | | scpi_bool_t SCPI_ParamToInt32(scpi_t * context, scpi_parameter_t * parameter, int32_t * value) { |
| | | return ParamSignToUInt32(context, parameter, (uint32_t *)value, TRUE); |
| | | return ParamSignToUInt32(context, parameter, (uint32_t *) value, TRUE); |
| | | } |
| | | |
| | | /** |
| | |
| | | * @param value result |
| | | * @return TRUE if succesful |
| | | */ |
| | | scpi_bool_t SCPI_ParamToUInt32(scpi_t * context, scpi_parameter_t * parameter, uint32_t * value) { |
| | | scpi_bool_t SCPI_ParamToUInt32(scpi_t * context, scpi_parameter_t * parameter, uint32_t * value) { |
| | | return ParamSignToUInt32(context, parameter, value, FALSE); |
| | | } |
| | | |
| | |
| | | * @return TRUE if succesful |
| | | */ |
| | | scpi_bool_t SCPI_ParamToInt64(scpi_t * context, scpi_parameter_t * parameter, int64_t * value) { |
| | | return ParamSignToUInt64(context, parameter, (uint64_t *)value, TRUE); |
| | | return ParamSignToUInt64(context, parameter, (uint64_t *) value, TRUE); |
| | | } |
| | | |
| | | /** |
| | |
| | | * @param value result |
| | | * @return TRUE if succesful |
| | | */ |
| | | scpi_bool_t SCPI_ParamToUInt64(scpi_t * context, scpi_parameter_t * parameter, uint64_t * value) { |
| | | scpi_bool_t SCPI_ParamToUInt64(scpi_t * context, scpi_parameter_t * parameter, uint64_t * value) { |
| | | return ParamSignToUInt64(context, parameter, value, FALSE); |
| | | } |
| | | |
| | |
| | | * @return |
| | | */ |
| | | scpi_bool_t SCPI_ParamInt32(scpi_t * context, int32_t * value, scpi_bool_t mandatory) { |
| | | return ParamSignUInt32(context, (uint32_t *)value, mandatory, TRUE); |
| | | return ParamSignUInt32(context, (uint32_t *) value, mandatory, TRUE); |
| | | } |
| | | |
| | | /** |
| | |
| | | * @return |
| | | */ |
| | | scpi_bool_t SCPI_ParamInt64(scpi_t * context, int64_t * value, scpi_bool_t mandatory) { |
| | | return ParamSignUInt64(context, (uint64_t *)value, mandatory, TRUE); |
| | | return ParamSignUInt64(context, (uint64_t *) value, mandatory, TRUE); |
| | | } |
| | | |
| | | /** |
| | |
| | | |
| | | result = SCPI_Parameter(context, ¶m, mandatory); |
| | | if (result) { |
| | | switch(param.type) { |
| | | switch (param.type) { |
| | | case SCPI_TOKEN_SINGLE_QUOTE_PROGRAM_DATA: |
| | | case SCPI_TOKEN_DOUBLE_QUOTE_PROGRAM_DATA: |
| | | *value = param.ptr + 1; |
| | |
| | | } |
| | | |
| | | pattern = context->param_list.cmd->pattern; |
| | | return matchCommand (pattern, cmd, strlen (cmd), NULL, 0, 0); |
| | | return matchCommand(pattern, cmd, strlen(cmd), NULL, 0, 0); |
| | | } |
| | | |
| | | #if USE_COMMAND_TAGS |
| | | /** |
| | | * Return the .tag field of the matching scpi_command_t |
| | | * @param context |
| | |
| | | return 0; |
| | | } |
| | | } |
| | | #endif /* USE_COMMAND_TAGS */ |
| | | |
| | | scpi_bool_t SCPI_Match(const char * pattern, const char * value, size_t len) { |
| | | return matchCommand (pattern, value, len, NULL, 0, 0); |
| | | return matchCommand(pattern, value, len, NULL, 0, 0); |
| | | } |
| | | |
| | | scpi_bool_t SCPI_CommandNumbers(scpi_t * context, int32_t * numbers, size_t len, int32_t default_value) { |
| | | return matchCommand (context->param_list.cmd->pattern, context->param_list.cmd_raw.data, context->param_list.cmd_raw.length, numbers, len, default_value); |
| | | return matchCommand(context->param_list.cmd->pattern, context->param_list.cmd_raw.data, context->param_list.cmd_raw.length, numbers, len, default_value); |
| | | } |
| | | |
| | | /** |
| | |
| | | * @param parameter |
| | | * @return |
| | | */ |
| | | scpi_bool_t SCPI_ParamIsValid(scpi_parameter_t * parameter) |
| | | { |
| | | scpi_bool_t SCPI_ParamIsValid(scpi_parameter_t * parameter) { |
| | | return parameter->type == SCPI_TOKEN_UNKNOWN ? FALSE : TRUE; |
| | | } |
| | | |
| | |
| | | * @param context |
| | | * @return |
| | | */ |
| | | scpi_bool_t SCPI_ParamErrorOccurred(scpi_t * context) |
| | | { |
| | | scpi_bool_t SCPI_ParamErrorOccurred(scpi_t * context) { |
| | | return context->cmd_error; |
| | | } |